A study was conducted to determine the noise levels in urban hospitals. In a random sample of 84 corridors, it was found that the mean noise 61.2 decibels and a standard deviation of 7.9. A 90% confidence interval about the true mean noise level in urban hospitals is constructed as [61.2 ± 1.4179]. 1. True or False: If 1000 such confidence intervals are constructed, 900 of them will contain the true mean noise levels in urban hospitals. 2. True or False: The chance that the true mean noise level is within the constructed confidence interval is 90%.
A study was conducted to determine the noise levels in urban hospitals. In a random sample of 84 corridors, it was found that the mean noise 61.2 decibels and a standard deviation of 7.9. A 90% confidence interval about the true mean noise level in urban hospitals is constructed as [61.2 ± 1.4179]. 1. True or False: If 1000 such confidence intervals are constructed, 900 of them will contain the true mean noise levels in urban hospitals. 2. True or False: The chance that the true mean noise level is within the constructed confidence interval is 90%.
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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A study was conducted to determine the noise levels in urban hospitals. In a random sample of 84 corridors, it was found that the mean noise 61.2 decibels and a standard deviation of 7.9. A 90% confidence interval about the true mean noise level in urban hospitals is constructed as [61.2 ± 1.4179].
1. True or False: If 1000 such confidence intervals are constructed, 900 of them will contain the true mean noise levels in urban hospitals.
2. True or False: The chance that the true mean noise level is within the constructed confidence interval is 90%.
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